The Zero/Sports High Flow Catted Twinscroll Downpipe is the choice among many hardcore Subaru enthusiasts in Japan.

Twin Scroll Downpipe w/catalyst - 42" Features:-USDM Length Downpipe-This JDM downpipe has met the highest quality standards in Japan and is also JASMA approved.-This pipe has a 4inch bellmouth entry with the rest of the pipe being 70 in diameter.